/**
 * Created by zhangbin on 16/6/6.
 */
var websocket = null;

//判断当前浏览器是否支持WebSocket
if ('WebSocket' in window) {
    websocket = new WebSocket("ws://localhost:8180/defaultMQWebsocket");
}
else {
    alert('Not support websocket')
}

//连接发生错误的回调方法
websocket.onerror = function () {
    setMessageInnerHTML("error");
};

//连接成功建立的回调方法
websocket.onopen = function (event) {
    setMessageInnerHTML("open");
}

//接收到消息的回调方法
websocket.onmessage = function (event) {
    $('#dg').datagrid('appendRow', event.data);
}

//连接关闭的回调方法
websocket.onclose = function () {
    setMessageInnerHTML("close");
}

//监听窗口关闭事件，当窗口关闭时，主动去关闭websocket连接，防止连接还没断开就关闭窗口，server端会抛异常。
window.onbeforeunload = function () {
    websocket.close();
}

//将消息显示在网页上
function setMessageInnerHTML(innerHTML) {
    document.getElementById('message').innerHTML += innerHTML + '<br/>';
}

//关闭连接
function closeWebSocket() {
    websocket.close();
}

//发送消息
function send() {
    var message = document.getElementById('text').value;
    websocket.send(message);
}

$(function () {
    $('#dg').datagrid({
        columns: [[
            {field: 'id', title: '序号', width: 100, align: 'right'},
            {field: 'userId', title: '用户编号', width: 100},
            {field: 'billId', title: '计费号码', width: 100},
            {field: 'stepId', title: '步骤', width: 100},
            {field: 'msg', title: '消息', width: 200}
        ]]
    });
});

